Waste and overflow trap



(No Mddel.)

, J. J. WADE.

WASTE AND OVERFLOW TRAP. No. 434,689.

1 z 11 y a w w H I J j Patented Au Tuzvoams versus 00., PMOYD-LIYHCL, msnwmau c UNITED STATES "PATENT OFFICE.

JAMES J. \VADE, OF CHICAGO, ILLINOIS.

WASTE AND OVERFLOW TRAP.

SPECIFICATION forming part of Letters Patent No. 434,689, dated August 19, 1890.

Application filed January 31, 1889. Serial No. 298.206. (No model.)

1'0 all whom it may concern.-

Be it known that I, JAMES J. WADE, a citizen of the United States, residing at Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in WVaste and Overflow Traps, which are fully set forth in the following specification, reference being had to' the accompanying drawings, forming a part hereof.

In the drawings, Figure 1 is a central vertical section through a hand-basin and the waste and overflow connection, showing the watersupply pipes in elevation. Fig. 2 is a detail section of a modified form of connection to be supplied to a standard form of bowl having the usual overflow-horn.

A is the basin, having waste-outlet at A and overflow-outlet through the horn A the induction to which from the basin is through the usual perforations a? in the wall of the basin near the upper margin.

B is the trap-fitting. It comprises the central chamber B and the lateral inductionpipes B and B respectively, which lead into the chamber near the bottom. The eduction from the chamber B is through the central duct 13 which stands up in the middle of the chamber B, opening near the top thereof and leading out through the bottom. The final waste-pipe 0, leading to the sewer, is connected into the bottomof the trap-fitting B at the center, so that it makes junction with the duct 13 which thus becomes the in itial part of the final waste-passage. The chamber B extends above the upper end of the duct B and is closed by the cap 12 and from the upper part of it there may be provided a ventilating-opening B from which the pipe b may lead to any convenient flue or point of escape for gases which might be generated in the trap.

An important feature of this invention consists in the mode of connecting and securing the trap-fitting to the basin, this being accomplished without use of soldered or wiped joints; but in such manner any one can make the attachment. The waste-outlet A of the basin is provided with the thimble or tail-piece D, which is flanged at the upper end and seated in the bowl in afamiliar manner and provided with the grating" d to pre vent the escape of large articles from the basin into the waste, and secured to the basin by the nut D, suitable packing or cement being employed to make the junction with the basin water-tight. Below the boss which contains the thread whereat the nut D is applied the tail-piece D is smooth and elongated, preferably two inches or more, to allow for adjustment hereinafter explained.

E is a tail-piece for connecting the overflow-horn A with the trap-fitting. It is of metal, and at the lower part for the distance of two inches or more is straight, and above that part slightly flaring, so that at the upper end it is enough larger than the termination of the horn A to permit the introduction between them when the tail-piece is placed over the horn of the rubber packing ring or sleeve E. Both the waste and overflow induction branches B and B of the trap-fitting terminate upwardly in an elongated hub B This hub is provided with an interior annu lar groove about midway in its length, which receives a rubber packing-ring F, whose interior diameter is such as to cause it to fit tightly about the lower ends of the tail-pieces D and E. Above the location of this rubber packing-ring in the hub there are inserted therein one or more, but preferably at least two, set-screws f.

By means of the devices now described the trap-fitting B may be connected to the basin as follows: The tail-piece D being secured in the manner illustrated at the waste-outlet, the tail-piece E will be slipped up over the lower end of the overflow-horn A the rubber packing-ring E having first been placed upon the end of the horn and the tail-piece being pushed up until a perfectly water-tight 0011- nection is effected by the rubber packingring. The set-screws F being drawn back far enough to admit the lower ends of the tail-pieces D and E to the hubs, respectively, the trap-fitting B is then pushed up until the tail-pieces are respectively entered through and within the rubber packingrings F, and thereupon the set-screws f being tightened, the fitting will thereby be secured to the tailpieces. The length of the tail-pieces permits of sufficient range of vertical adjustment of the trap-fitting to accommodate its position to the necessity of the connection which will be made with the rigid waste-pipe C and water-supply pipes II. The waste-pipe C, it will be observed, will to a large extent support the entire trap-fitting, being located centrallyunder it. Additional support is also obtained by the connection of the waste branch 13 to the basin by means of the tail-piece D; but in general no dependence should be placed upon this connection, since the basin itself is not always reliably supported independently of the pipes. From the supply pipe II a branch 11' is taken and carried into the trapfitting, being connected thereto at the lower part, and, as illustrated and conveniently made, being connected at the bottom of the overflow induction branch 13 at the nipple h. A valve H located in the branch H, controls the access of the water from said branch into the trap. The stem of the valve II is most conveniently carried up and protruded through the slab J and provided with a bandlc H above the slab, so that it may be controlled from that point. The horn A dilfers from the ordinary construction of overflowhorns of basins in that the duct A through it extends to the upper margin of the basin and opens at the top instead of bending laterally, so as to communicate with the basin only through the ports a. An aperture J is made in the slab directly over the mouth of the overflow-passage, (this aperture ordinarily constitutin g an indentation in the principal opening through the slab over the bowl,) so that access can be had to the duct A directly from the top of the slab, and thence downward entirely through the horn and the intermediate tail-piece E and into the trap. By this means the overflow can always be readily cleared of obstruct-ion, and especially by this means access directly to the trap is obtained, so that obstructions therein can be removed. In addition to the access thus afforded to the trap an aperture is provided at the bottom of each of the branches B and B said openings being closed by movable caps B and B through which, also, access can be obtained both into the branches B and B and into the central chamber B, and through the aperture which is closed by the cap B access is obtained up through B to the wasteoutlet at the center of the bowl. Thus every part of the trap-fitting is made easily accessible for the purpose of cleansing. A branch II of the water-supply pipe affords a further means of cleansing the trap. By openingthe valve H a jet of supply-water is injected into the bottom of the trap, and thereby all accumulated matter is dislodged and washed over into the final waste.. Since this can be done by the handle 11 at the surface of the slab, it becomes very easy for the user to keep the trap perfectly clean, since on each occasion ofuse it is possible by opening the valve H for an instant to completely cleanse the trap and all its connections.

W'hen it is inconvenient to connect a ventilatingpipe as 11 to this trap, and when for any reason the ball-valve L, which is illustrated seating on the upper end of the final waste-duct B is not employed, so that there might occur danger of emptying the traps by siphoning, I construct the trapfitting as I will now describe to prevent that result.

The opening of the overflow induction branch B into the central chamber B is made to extend a little higher than the corresponding opening of the waste induction branch B as illustrated in Fig. 1. If now the final wastepassage should become fully charged with the outflowing stream, so that a siphon would be formed of which such final waste-passage would be the longer limb, the siphonic action thus induced would lower the water in both the branches B and B until it reached the level of the upper margin of the opening of B into the central chamber B. When that level was reached, air would gain access past the water to the chamber B and break the siphon, and this would occur before the water-' level in B would have reached so low as the upper margin of the opening of B into B, and, the siphon being broken, the water remaining in the chamber B would fall back and seal the opening from B, thus leaving both overflow and waste passages water-sealed by the trap. The difference between the two levelsthat of the upper margin of B and that of the upper margin of IRE-is illustrated as being comparatively slight; but it may be made as great as desired or as experience may indicate to be necessary to produce the result above described, and it is safest to make it such that the amount of water in the duct 13 between the two levels will be suflicient to seal both openings independently of the water which may fall back from the chamber B, since it sometimes occurs that the siphonic action is not entirely terminated by the first access of air, or at least until some additional quantity of water is carried over while the air is rushing in.

In order-to adapt this trap-fitting to the ordinary form of'bowl, which has the overflowhorn communicating with the bowl only through the overflow-apertures in the side of the latter, as illustrated in Fig. 2, I provide a modification of the tail-pieceE of the form illustrated in Fig. 2, such tail-piece having a branch E, which extends up to and through the slab, in addition to the branch E, by means of which connection is made to the horn in the manner already described. By means of this connection my trap-fitting can be applied to any ordinary bowl, access being gained to the overflow-passage and trap from the surface of the slab through the branch E and the trap-fitting being connected without soldered or wiped joints "in the manner described. This fitting may be adapted to be used with basins of any size and for any purpose, including baths and sinks, and the necessary modifications of form to adapt it to such various situations will be obvious to any mechanic familiar with the art.

I claim- 1. In combination with the basin,the trapfitting B, comprising the middle chamber B and the waste and overflow eduction branches B and 13 leading into the bottom of the cen tral chamber and communicating, respectively, with the waste and overflow passages of the bowl, and the final waste-passage leadin g from the upper part of the central chamber downwardly, whereby said chamber con stitutes with said branches two traps, one between the waste-outlet and final Waste-pipe and the other between the overflow-outlet and final waste-pipe, substantially as set forth.

2. In combination with the basin having separate waste and overflow outlets, a trap between each of said outlets and the final waste-pipe, said traps communicating at-their lower part, and the water-supply pipe having a branch through which water is dischargeable in to the lower part of both traps, substantially as set forth.

3. In combination with the basin having waste and overflow outlets, the final'wastepipe and a chamber into which said waste-pipe protrudes and with which it communicates at the upper part, the waste and overflow outlets both communicating with said chamber below the communication therewith of the final waste-duct, whereby said chamber constitutes a double trap, sealing both the overflow and Waste, one of them having its communication with said chamber extending higher than the communication of the other therewith, substantially as and for the purpose set forth.

In testimony whereof I have hereunto set my hand, in the presence of ,two witnesses,

at Chicago, this 26th day of January, 1889. JAMES J. WADE. Witnesses:

CHAS. S. BURTON, J EAN ELLIOTT. 

